Mercurial GeistsCasting Cost: Card Type: Creature - SpiritPower/Toughness: 1/3Card Text: Flying Whenever you cast an instant or sorcery spell, Mercurial Geists gets +3/+0 until end of turn.Flavour Text: "Procedural misstep: provocation of geists for the purpose of yielding more energy can compromise containment units. Next action: clean up mess." -Laboratory notesArtist: Lake HurwitzRarity: Uncommon